The Problems about multi GPRS DTU connect to center server

[Alexleung]

Hi

I want to bulid a system to collect multi sensors (with RS232 and can not set AT command) through GPRS DTU. My problem is:

1.Would GPRS DTU with preset center server's static IP address and Port number auto connect to center when the power is up?

2. If the sensor can't assign address,would the server be possible to differentiate the source sensor  through the Source IP address from the "TCP wait on Listener vi" ? 

Thanks!

Best regards

Alex